Heineich bussing



(No Model.)

H. BUSSING.

DEVICE POR LIFTING DOORS.

Patented Dec. 14. 1886.

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HEINRICH BSSING, OF BRUNSWICK, GERMANY.

nevace FOR LIFTING DOORS.

SPECIFICATION forming part of Letters Patent No. 354,461, dated December 14, 1886.

Application filed January Q8, 1886. Serial No. 190,086. (No model.) Patented in France Decc-nxber30,185, No. 173,235, and in England June l2, 1886, No. 7,893.

Zlio @ZZ whom it may concern:

Be it known that I, Hnnvnicir BiissING, engineer, a subject of the Duke of Brunswick, residing at Brunswick, German Empire, have invented certain new and useful Improvements in Devices for Lifting Doors, (for which Letters Patent have been granted in France, No. 173,235, ``dated December 30, 1885,

variety of uses, its construction and applica' tion being here more especially designed for use with doors for lifting the same partly off their hinges when it is desired to oil their hinge-bearings. The form and relative arrangement of the operative elements of the apparatus may be varied according to the uses made of said apparatus, without, however, changing the principles involved or the nature of the invention, 4which consists in a stationary foot-plate and a lifting or shifting lever fulcrumed thereto, and means for operating said lever7 substantially as hereinafter fully described.

In the accompanying drawings, in which like letters indicate like parts, and which drawings form a part of this specification, `Figure l shows vmy improvements in connection with a door by a partial longitudinal vertical section, the parts being in position to lift the door. Fig. 2v shows the said improvements in side elevation, the lever being partly broken away, and in the position they assume when the door has been lifted. Fig. 3 is a top plan View of the saine, the lever being shown in section; and Fig. 4 is a side elevation showing means for operatingthe lever otherwise than by hand.

In the above drawings I have illustrated my improved lifting or shifting devices for use in lifting doors partly off their hinges when it is desired to oil the same.

almost impossible to lift the door partially off the hinges and hold the same in that position while the hinges are being oiled, and when lifted entirely off its hinges it is very troublesome to again hang the door.

By means of my improvements a door may be partly lifted ofi' its hinges with the greatest facility, and the apparatus is constructed as follows: It is composed of a'supporting or bed plate, c, the forward edge, f, of which is beveled, so as to adapt it to be introduced between a door, D, and the floor. The plate c is also provided with a slot or opening, c', or a recess, the rear vertical wall of which is beveled at its upper end to form a bearing, 0'", and at its rear end the said plate o has bearings (a lug or ear) o, t'o which is pivoted a flat lifting-lever, b. The latter lever is a little narrower than the plate c, and is curved or bent at its forward end, the nose b whereof is beveled and lies within the opening c of plate c, the under side of itsbent portion resting on the beveled shoulder o2 of said plate c. As shown, the upper edge of the beveled portion of the lever Z) lies flush with the upper face of the corresponding portion of the plate o, and when in the opening c of the latter forms practically a continuation of said upper face of the plate.

Any suitable means may be' employed for applying t-he necessary power to the lever b'to lift the load thereon. This power may be applied through the medium of a hand-lever, a, as shown in Figs. l, 2, and 3. In this case the hand-lever a, as shown, is fulcrumed on the plate c in suitable bearings, c4, and said lever has a cam, d, formed on and projecting from its perforated or bearing end, which cam d impinges on the under side of the lever b.

kThe lever b has a longitudinal slot, e, through which the lever ay projects and in which` it plays. The rear wall of said slot is inclined or beveled,and formsa shoulder, b2, upon which the lever et rests when in its depressed position, as shown in Fig. 2.

It is obviousthat when the apparatus is pushed under a door and the lever@ depressed IOO tion shown in the latter figure stands on its dead-point, there is no need of any stop to maintain the parts in their respective positions during the time the hinges are oiled.

In case the hinge-pins are so short that by fully depressing the lever the door would be lifted entirely off its hinges any suitable means maybe employed to lock the lever a into any desired position 5 or devices for operating the lever b may be employed that will act as a stop to the lever b at whatever point to which it may be brought-as, for instance, a screw and hand-wheel, g, as shown in Fig. 4:, the lever ct in this case being dispensed with. In either construction the forward end of the plate c forms a bearing that will effeetually prevent the tilting of the apparatus when the load is supported therefrom.

As hereinbefore stated, the form of the 0perative device may be varied according to the uses made ofthe apparatus. For instance, when the apparatus is constructed for moving bodies such as railroad-cars, the lever b may be provided with a claw or claws and the apparatus applied between the rail and ear-wheel, so that the claw or claws of the lever will take hold of and operate on the wheel when the lever a is depressed or the screw g, Fig. 4, rotated.

The apparat-us may be used for many other purposes than those indicated, and I do therefore not desire to limit myself to any specific form of its operative devices.

The combination, with the slotted base-plate o, the forward end, f, of which is made tapering, and the slotted lifting plate or lever b, the forward end, b', of which is also made tapering and adapted to lie in the slot of the baseplate, of the lifting lever a, fulcrumed on plate c and provided with the cam d, said parts being arranged for operation substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

HEINRICH BSSING.

Vitnesses:

WILLIAM C. Fox, A. LUDEWIG. 

